Automatic valve for pneumatic tires.



H. W. 6L W. M BRINK. AUTOMATIC VALVE POR PNEUMATIG TIRES.

APPLIUATION FILED JAN.17,1911.

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H. W. L W. M. BRINK. AUTOMATIC VALVE POR PNEUMATIG TIRES.

APPLICATION FILLED JAN.17,1`911. LQJ. mem@ @en w, 1911,

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UNITED sTATnjs PATEN union.

HENRY W. BRNK ANI) WILLIAM M. BRINK, OF INDIANAPOLIS, INDIANA.

AUTOMATIC VALVE FOR ENEUMATIC TIRES.

Specification of Letters latent.

intiem-eu oei. Tori.

i Application filed January 17, 1911. Serial No. 603,161.'

Zo all whom it may concern:

Be it known that we, HENRY Wl. limsi( and WILLIAM M. Brown, citizens ot the United States, residing at lnrflianapolis, in the county of. Marion and State of Indiana, have invented provenients in Automatic Valves for vlneumatic Tires, otwhich the following is a specification.

Th is invention relates to certain means hy which pneumatic tires may he inflated; and the object ofthe invention is in the provision oi means for infiating pneumatic tires with air while the vehicle, on which the tires are employed, is in motion, thereby ohviating the necessity ot' stopping the vehicle and the dis-mounting of the driver.

le accomplish the above object ot' the in` vention hy means of the device illustrated in the accompanying drawings, forming a part hereof, in which` Figure 1 is a fragmentary detail view partly in elevation and partly in section of the forward portion of an automobile showing our invention in operative position. Fig. 2is a longitudinal central sectional view of 'one of which the air passes to reach the tire, as seen from the line 2 2 in Fig. 3. Fig. 3 is an elevation ot' the inner end of the outer collar of the huh, as .seen from the line 3-3 in Fig. 2. Fig. 4' is an enlarged detail scc tional view ot' the 'upper end of' the conipensating bearing. Fig. 5. is a view taken on the line 5 5 in Fig. 1. Fig. 6 is an elevation of the front end of the outer collar of the hub, as seen from the line (36 in Fig. 1. f

Referring to the' drawings, l0 represents the rim of the wheel, and 11 the pneumatic tire of a well known type.

The invention consists, primarily, ot a sleeve 12 which is bolted to the outer face of the wheel center and forms the hearing for the wheel in that it receives the axle spindle. The sleeve 12 is reduced in diameter to form the shoulder 13. which may be eut on an angle as shown if desircd;` The front end of the sleeve 12 is threaded to receive the nut 1G which forms an end hearing for and prevents displacement of the j non-rotating or stationary collar 17 which snugly tits the exterior peripheral surface of the reduced portion of the sleeve 12. The rear face of the collar 17 is cut to coincide with thel adjacent face of the shoulder 1.3;

certain new and useful Ixn-v the wheel hubs through,v

, sealinga the joints 27 and the screws 28 serve the air pressure is removed.

cated within the hodyT ot' the vehicle or Aan air pump operated hy the engine.

A ringr es surrounds the sleeve 12 and incloses the recess in the collar hy which the air chainsr her19 is formed. and forms a hearing toi' the forward end of the collar 17. The ring` 22 is held against rotation hy means of a screw 23 in the collar 17 which screw projects into a channel 2st in the ring. 2. The rinp,r 22 and collar 17 have, however, a slight independent movement in a longitudinal direction, movement. will he hereinafter described. As the air is admitted to the chamber 19 under a high pressure provision against, ieakage past the ring 22 is made hy means of the U shaped gasket S25, the bentl edges ot which spread under pressure and thus tt'ectively in the rear. A :dat ring;

permanently in position.

As has heretofore heen mentioned, there is a slight independent longitudinal movement between the ring 22 and the collar 17. This is necessary to permit the formation of tight joints at both ends of 4the collar 17 during the time the air pressure is on and the tires are being intiated, and to permit the parts to relax to reduce unnecessary friction when When the air enters the chamber 19 the ring 22 will move, if it 4moves at all, toward the nut it'so as to form a hearing for steadyimgr the forward end of the collar 17, while the collar will he moved tightly against the adjacent face.

of the shoulder 13, the abutting surfaces forming a metallic air tight joint hetween thc two parts. To prevent the vibration from rattling the collar 17 after the air pressure is removed we provide the springs 30, located at convenient points around the collar, which exert a slight pressure against the said collar. The meeting surfaces of the collar 17 and the shoulder 13 are kept iuhricated hy means of the depressions or in tact, these meeting' surfaces heinfg ground Vand the object Aof this` to hold the gasket cups 32 cut into the face of the cella?, as clearly shown` in Fig. 3 of the drawings, which depressions are filled with suitable lubricant.

The face of the collar'17 adjacent to the shoulder 13 is provided with anannularly extending air conveying groove or channel connects with the valve-stem 41 of the tire,

of a well known type.

As heretofore mentioned, the collar 17 is stationary so as to enable a connection to lbe maintained with the air supply, through the pipe 21. A portion of the air v'inlet pipe 21 and the ,outlet pipe 40 is formed of flexible material to permit them to be readily disconnected when for cause it is desired to entirely remove the tire .11 from the rim of the wheel. In view of the partial fiexibility of the air inlet pipe 21 it can not be used asan anchorage for the collar 17 to lkeep the latter from rotating, sothat an additional means for this purpose 1s necessary and to secure that end we provide the stayrod 42 which engages a socket formed in the boss 43 on the collar 17, and tov prevent accidental displacement of the rod 42 fromthe socket the set screw 44 is provided. The rod 42 extends upwardly and over the wheel to a point',` in case it is the front wheel, perpendicularly over the knuckle joint 44 in the axle, at which point the rod 42 1s bent `upwardly to form the stadt1 45 for a compensating bearing made necessary so as not to interfere with 'the movement of the wheel. .Thesta' 45 projects into avertically disposed sleeve 48 which. is supported in the standard 50 secured to thev axle, which construction permits of both longitudinal and rotatorial'inovements between the stati' 45 and said sleeve, thereby giving fiexibility and ease of movement among the associated parte. The upper lend of the standard 50 is ent to lie in a horizontal plane and this horizontal portion is provided with '-anfelon- 'gated slot 51 through which the vertically disposed sleeve 48 projects; the sleeve bein less in diameter than the length of the' slot allows a slight lateral movement in` addi-v tion 'to the movements above mentioned. These movements are necessary when it is consideredthat the standard 50 is rigid while the rod 42 which is attached to the of perforations 35 so that a column,

hub is susceptible to the same vibration as the wheel. The upperend of the sleeve 48 is provided with the threaded cap 55 which extends downward around a portion of the sleeve, and the cap is vrecessed to provide an intervening space' 56' for the spring 57 which presses upward against the cap 55 lower side of the horizontal portion of the standard 50, and the lower end of the spring 57 bears upon the plate 58 which bearsupon the upper face of the horizontal portion of the standard 50. By means of this' construction the 'spring 57 firmly clamps the horizontal portion of the standard 50 be-v tween the sleeve 48 and the plate 58 and prevents the parts from rattling.

The ,operation of the invention is as follows: When it is desired to inflate the tires the air is conveyed through the pipe 21 to,`

the annular air chamber 19 in the collar 17.

the several perforations 35 to the annulary air distributing groove 34 which groove is in constant communication. with the air outlet 37 through which the. air passes'into the and draws the sleeve 48 tightly against the .The air passes from the chamber 19 through outlet tube 40 which connects with the valve-stem 41 of the tire. automobile are inflated until they withstand a resistance of about seventy-five pounds to the square inch, and to prevent overcharging of the tires we insert in the outlet pipe 40 a relief valve 60 which will open and re# lease the air when the pressure within the tire has reached seventy-five-pounds. The valve 60 also acts as a signal to notify the operator to shut ofi' the supply and'prevent dissipation of the air.

Having thus fully described our said invention, what we desire. to secure by lLetters Patent, is-

` 1..The combination with a vehicle wheel provided with a pneumatic tire, of a pneu' matic tire infiating device comprising a wheel hub, said hub being provided with an air outletpassageway havmg its mouth lo" vcated in the face of the shoulder on said hub, a shoulder formed on said hub, a colfv lar surrounding said hub and abuttingthe shoulder, tending air receiving groove in the end adjacent to the shoulder, said groove registering'with the air outlet passageway in the said collar having an annularly ex.

The tires of enfhub, an air supply source communicating.

lar surrounding said hub and abutting the a vehicle wheel on said hub, a col` shoulder,`said collar having an annularly eztending air receiving groove in the .end adjacent to the shoulder, said groove registering with the air outlet passageway in th'e hub and a recess fo'rmedin the forward end of the collar to provide an airy distributing chamber, said collar being further provided with an. air passageway connecting the air" chamber and groove together, a ring toclose the recess' and supportthe forward end of said collar, an air supply source communicating with 'the air chamber in the collar, a pipe connecting the air outlet in the hub and Vtire together, and means to hold, said collar stationary. y i

` 3. The combination with `a vehicle wheel provided with a pneumatic tire, of a pneumatic infiat'ing device-comprisin a wheel hub, said hub being provided with an air outlet passageway having its ymouth located in the face of the shoulder on the hub, a shoulder formed onsaid hub, a collar' surrounding said hub and abutting the shoul-v ing air receiving groove in the end adjacent der, said collar having an annularly extendto the shoulder, said groove registering with 'the air outlet passageway in the hub and a recess formed in the forward end of the collar to provide an air distributing chamber,

`said collar being further provided with an 'air passageway connecting the air chamber and groove together, a ring to close the recess and support the forward end oit diana, this, 2nd day of November, A. D.

one thousand nine hundred and ten.

HENRY W. 'BRINK WILLIAM BRINK.

Witnesses:

L. B. WOERNER, F. W. WOERNER.' 

